<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <div id='app'></div>
    <div id='app2'></div>
    <div style="width:200px;height:100px;border:1px solid red">
        <button id="play">播放</button>
    </div>
</body>

</html>